【摘要】 基于现有扩频数字水印技术,提出了一种新的盲数字水印算法——余数图像数字水印方案(RIWS).理论和实验表明,该算法灵活地运用了载体图像的统计特性,有效降低了水印信息的误码率,在强高斯噪声污染环境中仍能提取出可辨识的水印信息.更多还原

【Abstract】 This paper gave a brief review of the traditional spread-spectrum watermarking system and presented an improved blind watermarking scenario called Remainder Image Watermarking Scheme (RIWS). The theoretic analysis and simulation results show that this algorithm makes good use of the statistical character of the host image, so it can reduce the BER of the detected watermark information and can still recover recognizable watermark under severe Gaussian noise attack.更多还原